What are state and props. Difference.

Question

Accepted Answer

State and props are two important concepts in React. State represents the internal data of a component, while props are used to pass data from a parent component to a child component.

State is mutable and can be changed within a component.
Props are read-only and cannot be modified within a component.
State is used to manage component-specific data, while props are used for inter-component communication.
State is initialized and managed within a component, while props are passed down from parent components.
State changes trigger re-rendering of the component, while props changes do not trigger re-rendering.

Accepted Answer

In React, both state and props are used to store and pass data between components, but they have different roles:

State: State is a way to manage and store data within a component. It is mutable and can be changed by the component itself. Typically, state is used to store data that can change over time and affects how the component is rendered. State is set using the setState() method.
Props: Props are short for "properties" and are used to pass data from a parent component to a child component. Props are immutable and cannot be changed by the child component. Typically, props are used to pass data that is needed to render the child component.

In simpler terms, state is like an object that belongs to a component and can be changed by that component, while props are like arguments passed to a function and cannot be changed by the receiving component.

What are state and props. Difference.

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